Climate and monthly weather forecast
Monticello, MO

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Weather in January

January, like December, in Monticello, Missouri, is another cold winter month, with an average temperature fluctuating between 20.1°F (-6.6°C) and 32.5°F (0.3°C). Monticello reaches its lowest average temperatures in January, measuring 32.5°F (0.3°C) at the peak and 20.1°F (-6.6°C) at the lowest. Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Monticello, Missouri, with an average temperature fluctuating between 23.7°F (-4.6°C) and 37.4°F (3°C). February brings an average high-temperature of a still cold 37.4°F (3°C), nearly identical to the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Monticello, Missouri, with an average temperature ranging between min 35.2°F (1.8°C) and max 50.9°F (10.5°C). The arrival of March brings an increase in high-temperatures, moving from an icy 37.4°F (3°C) in February to a cool 50.9°F (10.5°C). Weather in March »

Weather in April

April in Monticello, Missouri, is a comfortable spring month, with an average temperature fluctuating between 45°F (7.2°C) and 62.4°F (16.9°C). April comes with an increase, with the average high-temperature moving from a fresh 50.9°F (10.5°C) in March to an enjoyable 62.4°F (16.9°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Monticello, Missouri, with an average temperature ranging between max 71.8°F (22.1°C) and min 55°F (12.8°C). As May arrives, Monticello's weather shows an increase in high-temperatures, moving from April's refreshing 62.4°F (16.9°C) to an agreeable 71.8°F (22.1°C). Weather in May »

Weather in June

June, the first month of the summer in Monticello, is a moderately hot month, with temperature in the range of an average high of 81.5°F (27.5°C) and an average low of 64.4°F (18°C). Monticello's transition into June brings a rise in the average high-temperature, moving from an agreeable 71.8°F (22.1°C) in May to a moderately hot 81.5°F (27.5°C). Weather in June »

Weather in July

July, like June, in Monticello, Missouri, is a moderately hot summer month, with an average temperature fluctuating between 84.6°F (29.2°C) and 66.6°F (19.2°C). July is the warmest month, exhibiting average temperatures of 84.6°F (29.2°C) at the peak and 66.6°F (19.2°C) at the base. In July, the average heat index is computed to be a fiery hot 95°F (35°C). Weather in July »

Weather in August

August, the last month of the summer in Monticello, is another warm month, with temperature in the range of an average high of 83.7°F (28.7°C) and an average low of 64.9°F (18.3°C). In the transition from July to August, Monticello reports an average high-temperature of a still warm 83.7°F (28.7°C), indicating a close resemblance to the prior month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Monticello, Missouri, with an average temperature fluctuating between 58.1°F (14.5°C) and 77.9°F (25.5°C). The start of September signals a gentle decrease in the average high-temperature, transitioning from 83.7°F (28.7°C) in August to a still warm 77.9°F (25.5°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Monticello, Missouri, with an average temperature varying between 46.6°F (8.1°C) and 63.5°F (17.5°C). October's arrival signals a significant decrease in average high-temperatures, falling from September's moderately hot 77.9°F (25.5°C) to a refreshing 63.5°F (17.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Monticello, is also a fresh month, with an average temperature ranging between min 35.4°F (1.9°C) and max 50.4°F (10.2°C). The arrival of November signals a shift in temperature, down from a refreshing 63.5°F (17.5°C) in October to a fresh 50.4°F (10.2°C). Weather in November »

Weather in December

December, the first month of the winter in Monticello, is also an icy month, with an average temperature varying between 38.7°F (3.7°C) and 26.6°F (-3°C). With the onset of December, Monticello experiences a modest temperature adjustment, with the average high-temperature receding from a fresh 50.4°F (10.2°C) in November to a wintry 38.7°F (3.7°C). Weather in December »
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Monticello?

January is the coldest month of the year, registering average temperatures as high as 32.5°F (0.3°C) and as low as 20.1°F (-6.6°C).

What is the driest month?

January is the month with the least rainfall. Rain falls for 5.3 days and accumulates 1.26" (32mm) of precipitation.

How much does it rain?

In Monticello, during the entire year, the rain falls for 137.5 days and collects up to 27.68" (703mm) of precipitation.

When does it snow?

Months with snowfall are January through April, October through December.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 9.3 days and accumulates 4.21" (107mm) of snow.

How many days does it snow?

In Monticello, during the entire year, snow falls for 28.4 days and aggregates up to 12.44" (316mm) of snow.

What is the month with the least sunshine?

The month with the least sunshine in Monticello is January, with an average of 4.4h of sunshine.

What are the months with the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Monticello.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What are the most humid months?

May through July, with an average relative humidity of 80%, are most humid months.

What is the rainiest month in Monticello?

May is the month with the most rainfall. Rain falls for 17.3 days and accumulates 3.9" (99mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

When are the longest days in Monticello?

June has the longest days of the year, with an average of 15h and 0min of daylight.

What are the months with the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What time of the year is the hottest?

Monticello witnesses the warmest weather in July, with temperatures averaging a high of 84.6°F (29.2°C) and a low of 66.6°F (19.2°C).

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.4h of sunshine.

What is the least humid month?

With an average relative humidity of 70%, October is the least humid month.

What is the month with the shortest days?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

Average temperature
Monticello, MO

Average temperature - Monticello, MO

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (32.5°F).

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure
Monticello, MO

Average pressure - Monticello, MO

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed
Monticello, MO

Average wind speed - Monticello, MO

The windiest months (with the highest average wind speed) are January and February (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

Average humidity
Monticello, MO

Average humidity - Monticello, MO

The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall
Monticello, MO

Average rainfall - Monticello, MO

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.26").

Average rainfall days
Monticello, MO

Average rainfall days - Monticello, MO

The months with the highest number of rainy days are May and June (17.3 days).
The month with the least rainy days is January (5.3 days).

Average snowfall
Monticello, MO

Average snowfall - Monticello, MO

The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Monticello, MO

Average snowfall days - Monticello, MO

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Monticello, MO

Average daylight / Average sunshine - Monticello, MO

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days
Monticello, MO

Average sunshine days - Monticello, MO

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (10.1 days).

Average UV index
Monticello, MO

Average UV index - Monticello, MO

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average visibility
Monticello, MO

Average visibility - Monticello, MO

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Monticello, Missouri, USA

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